<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
                   "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>表单标记</title>
</head>
<body>
   <h1>我是一个标题</h1>
</body>

</html>
